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   Autoconf Macro: ac_prog_java_works
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  <h1>
   ac_prog_java_works
  </h1>
  <h2>
   Synopsis
  </h2>
  <p class="indent" style="white-space:nowrap;">
   <code>AC_PROG_JAVA_WORKS</code>
  </p>
  <h2>
   Description
  </h2>
  <div class="indent">
   <p>
    Internal use ONLY.
   </p>
   <p>
    Note: This is part of the set of autoconf M4 macros for Java programs. It
    is VERY IMPORTANT that you download the whole set, some macros depend on
    other. Unfortunately, the autoconf archive does not support the concept of
    set of macros, so I had to break it for submission. The general
    documentation, as well as the sample configure.in, is included in the
    <a href="ac_prog_java.html">AC_PROG_JAVA</a> macro.
   </p>
  </div>
  <h2>
   Author
  </h2>
  <p class="indent">
   Stephane Bortzmeyer &lt;bortzmeyer@pasteur.fr&gt;
  </p>
  <h2>
   Last Modified
  </h2>
  <p class="indent">
   2000-07-19
  </p>
  <h2>
   M4 Source Code
  </h2>
  <div class="indent">
   <pre class="m4source">
AC_DEFUN([AC_PROG_JAVA_WORKS], [
AC_CHECK_PROG(uudecode, uudecode$EXEEXT, yes)
if test x$uudecode = xyes; then
AC_CACHE_CHECK([if uudecode can decode base 64 file], ac_cv_prog_uudecode_base64, [
dnl /**
dnl  * Test.java: used to test if java compiler works.
dnl  */
dnl public class Test
dnl {
dnl
dnl public static void
dnl main( String[] argv )
dnl {
dnl     System.exit (0);
dnl }
dnl
dnl }
cat &lt;&lt; \EOF &gt; Test.uue
begin-base64 644 Test.class
yv66vgADAC0AFQcAAgEABFRlc3QHAAQBABBqYXZhL2xhbmcvT2JqZWN0AQAE
bWFpbgEAFihbTGphdmEvbGFuZy9TdHJpbmc7KVYBAARDb2RlAQAPTGluZU51
bWJlclRhYmxlDAAKAAsBAARleGl0AQAEKEkpVgoADQAJBwAOAQAQamF2YS9s
YW5nL1N5c3RlbQEABjxpbml0PgEAAygpVgwADwAQCgADABEBAApTb3VyY2VG
aWxlAQAJVGVzdC5qYXZhACEAAQADAAAAAAACAAkABQAGAAEABwAAACEAAQAB
AAAABQO4AAyxAAAAAQAIAAAACgACAAAACgAEAAsAAQAPABAAAQAHAAAAIQAB
AAEAAAAFKrcAErEAAAABAAgAAAAKAAIAAAAEAAQABAABABMAAAACABQ=
====
EOF
if uudecode$EXEEXT Test.uue; then
        ac_cv_prog_uudecode_base64=yes
else
        echo "configure: __oline__: uudecode had trouble decoding base 64 file 'Test.uue'" &gt;&amp;AC_FD_CC
        echo "configure: failed file was:" &gt;&amp;AC_FD_CC
        cat Test.uue &gt;&amp;AC_FD_CC
        ac_cv_prog_uudecode_base64=no
fi
rm -f Test.uue])
fi
if test x$ac_cv_prog_uudecode_base64 != xyes; then
        rm -f Test.class
        AC_MSG_WARN([I have to compile Test.class from scratch])
        if test x$ac_cv_prog_javac_works = xno; then
                AC_MSG_ERROR([Cannot compile java source. $JAVAC does not work properly])
        fi
        if test x$ac_cv_prog_javac_works = x; then
                AC_PROG_JAVAC
        fi
fi
AC_CACHE_CHECK(if $JAVA works, ac_cv_prog_java_works, [
JAVA_TEST=Test.java
CLASS_TEST=Test.class
TEST=Test
changequote(, )dnl
cat &lt;&lt; \EOF &gt; $JAVA_TEST
/* [#]line __oline__ "configure" */
public class Test {
public static void main (String args[]) {
        System.exit (0);
} }
EOF
changequote([, ])dnl
if test x$ac_cv_prog_uudecode_base64 != xyes; then
        if AC_TRY_COMMAND($JAVAC $JAVACFLAGS $JAVA_TEST) &amp;&amp; test -s $CLASS_TEST; then
                :
        else
          echo "configure: failed program was:" &gt;&amp;AC_FD_CC
          cat $JAVA_TEST &gt;&amp;AC_FD_CC
          AC_MSG_ERROR(The Java compiler $JAVAC failed (see config.log, check the CLASSPATH?))
        fi
fi
if AC_TRY_COMMAND($JAVA $JAVAFLAGS $TEST) &gt;/dev/null 2&gt;&amp;1; then
  ac_cv_prog_java_works=yes
else
  echo "configure: failed program was:" &gt;&amp;AC_FD_CC
  cat $JAVA_TEST &gt;&amp;AC_FD_CC
  AC_MSG_ERROR(The Java VM $JAVA failed (see config.log, check the CLASSPATH?))
fi
rm -fr $JAVA_TEST $CLASS_TEST Test.uue
])
AC_PROVIDE([$0])dnl
]
)
</pre>
  </div>
  <h2>
   License
  </h2>
  <div class="indent">
   <span style="white-space:nowrap;">Copyright &copy; 2000 Stephane Bortzmeyer
   &lt;bortzmeyer@pasteur.fr&gt;</span>
   <p>
    This program is free software; you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by the Free
    Software Foundation; either version 2 of the License, or (at your option)
    any later version.
   </p>
   <p>
    This program is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
    more details.
   </p>
   <p>
    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc., 59
    Temple Place - Suite 330, Boston, MA 02111-1307, USA.
   </p>
   <p>
    As a special exception, the respective Autoconf Macro's copyright owner
    gives unlimited permission to copy, distribute and modify the configure
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    distributing such scripts, even though portions of the text of the Macro
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